GJ 1002 b explained

GJ 1002 b
Image Scale:	1.25
Discovered:	December 2022
Discovery Method:	Radial velocity
Extrasolarplanet:	yes
Star:	GJ 1002

GJ 1002 b (also designated as Gliese 1002 b) is a potentially habitable exoplanet located 16 light-years away, in the constellation of Cetus. The planet, which has an Earth Similarity Index of 86%, is in the habitable zone of its parent star.^[1] GJ 1002 b has a minimum mass of 1.08 Earth masses and is estimated by the Planetary Habitability Laboratory to have 1.03 times the radius of Earth and a surface temperature of 261 Kelvin.^[2]

Detection

GJ 1002 b was detected in 2022 via the radial velocity method, which was used to measure the planet's minimum mass.

Host star

The host star, GJ 1002, is a quiet M5.5V type red dwarf not believed to release flares that could harm the atmosphere.^[3] The planet orbits its host star at a distance of 0.0457 AU (Astronomical units), with a 10.3 day orbital period and a 0.0 eccentricity.^{[4] [5]}

Notes and References

1. Web site: 2022-12-29 . EarthSky 2 possibly Earth-like worlds, just 16 light-years away . 2023-01-08 . earthsky.org . en-US.
2. Web site: PHL @ UPR Arecibo - Earth Similarity Index (ESI) . 2023-01-08 . phl.upr.edu . en-US.
3. Web site: Nowakowski . Tomasz . Phys.org . Two Earth-mass exoplanets orbiting nearby star discovered . 2023-01-08 . phys.org . en.
4. Web site: Exoplanet-catalog . 2023-08-28 . Exoplanet Exploration: Planets Beyond our Solar System . en.
5. Web site: The Extrasolar Planet Encyclopaedia — GJ 1002 b . . 2023-08-28 .